Refactor: Rename Calculators To Projectors

Why This Change Is Necessary
========================================================================

Now that the calculator is responsible for more than just a single
`calculate` method, it is being renamed to something more appropriate
for its task.

What These Changes Do To Address the Issue
========================================================================

Rename and move the files for the `SmoothedAverage` class.

Side Effects Caused By This Change
========================================================================

None expected.

lib/ruby-progressbar/projector.rb

@@ -1,10 +1,10 @@
-require 'ruby-progressbar/calculators/smoothed_average'
+require 'ruby-progressbar/projectors/smoothed_average'
 
 class   ProgressBar
 class   Projector
-  DEFAULT_PROJECTOR     = ProgressBar::Calculators::SmoothedAverage
+  DEFAULT_PROJECTOR     = ProgressBar::Projectors::SmoothedAverage
   NAME_TO_PROJECTOR_MAP = {
-    'smoothed' => ProgressBar::Calculators::SmoothedAverage
+    'smoothed' => ProgressBar::Projectors::SmoothedAverage
   }.freeze
 
   def self.from_type(name)

lib/ruby-progressbar/calculators/smoothed_average.rb → lib/ruby-progressbar/projectors/smoothed_average.rb

@@ -1,5 +1,5 @@
 class   ProgressBar
-module  Calculators
+module  Projectors
 class   SmoothedAverage
   DEFAULT_STRENGTH           = 0.1
   DEFAULT_BEGINNING_POSITION = 0

spec/lib/ruby-progressbar/components/bar_spec.rb

@@ -30,7 +30,7 @@ module   Components
 
   describe '#bar' do
     it 'displays the bar with no indication of progress when just begun' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 50)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -41,7 +41,7 @@ module   Components
 
     it 'displays the bar with an indication of progress when nothing has been ' \
        'completed and the bar is incremented' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 50)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -53,7 +53,7 @@ module   Components
 
     it 'displays the bar with no indication of progress when a fraction of a percentage ' \
        'has been completed' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 200)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -64,7 +64,7 @@ module   Components
     end
 
     it 'displays the bar as 100% complete when completed' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 50)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -76,7 +76,7 @@ module   Components
     end
 
     it 'displays the bar as 98% complete when completed and the bar is decremented' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 50)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -90,7 +90,7 @@ module   Components
 
   describe '#bar_with_percentage' do
     it 'displays the bar with an integrated percentage properly when empty' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -101,7 +101,7 @@ module   Components
 
     it 'displays the bar with an integrated percentage properly just before' \
        'the percentage is displayed' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -114,7 +114,7 @@ module   Components
 
     it 'displays the bar with an integrated percentage properly immediately after' \
        'the percentage is displayed' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -127,7 +127,7 @@ module   Components
 
     it 'displays the bar with an integrated percentage properly on double digit' \
        'percentage' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -139,7 +139,7 @@ module   Components
     end
 
     it 'displays the bar with an integrated percentage properly when finished' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -151,7 +151,7 @@ module   Components
 
     it 'calculates the remaining negative space properly with an integrated percentage ' \
        'bar of 0 percent' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 200)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -173,7 +173,7 @@ module   Components
 
   describe '#incomplete_space' do
     it 'displays the bar with an integrated percentage properly when empty' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -184,7 +184,7 @@ module   Components
 
     it 'displays the bar with an integrated percentage properly just before' \
        'the percentage is displayed' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -197,7 +197,7 @@ module   Components
 
     it 'displays the bar with an integrated percentage properly immediately after' \
        'the percentage is displayed' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -210,7 +210,7 @@ module   Components
 
     it 'displays the bar with an integrated percentage properly on double digit' \
        'percentage' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -222,7 +222,7 @@ module   Components
     end
 
     it 'displays the bar with an integrated percentage properly when finished' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 100)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -234,7 +234,7 @@ module   Components
 
     it 'calculates the remaining negative space properly with an integrated percentage ' \
        'bar of 0 percent' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => 200)
       progressbar = Bar.new(:progress => progress,
                             :length   => 100)
@@ -254,7 +254,7 @@ module   Components
     end
 
     it 'is represented correctly when a bar has an unknown amount to completion' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => nil)
       progressbar = Bar.new(:progress => progress,
                             :length   => 80)
@@ -265,7 +265,7 @@ module   Components
 
     it 'is represented after being incremented once when a bar has an unknown amount ' \
        'to completion' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => nil)
       progressbar = Bar.new(:progress => progress,
                             :length   => 80)
@@ -278,7 +278,7 @@ module   Components
 
     it 'is represented after being incremented twice when a bar has an unknown amount ' \
        'to completion' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => nil)
       progressbar = Bar.new(:progress => progress,
                             :length   => 80)
@@ -290,7 +290,7 @@ module   Components
     end
 
     it 'is represented correctly when a bar has a customized unknown animation' do
-      projector   = Calculators::SmoothedAverage.new
+      projector   = Projectors::SmoothedAverage.new
       progress    = Progress.new(:projector => projector, :total => nil)
       progressbar = Bar.new(:progress                         => progress,
                             :unknown_progress_animation_steps => [
@@ -307,7 +307,7 @@ module   Components
 
   it 'raises an error when attempting to set the current value of the bar to be ' \
      'greater than the total' do
-    projector    = Calculators::SmoothedAverage.new
+    projector    = Projectors::SmoothedAverage.new
     progress     = Progress.new(:projector => projector, :total => 10)
     _progressbar = Bar.new(:progress => progress)
 

spec/lib/ruby-progressbar/components/percentage_spec.rb

@@ -6,7 +6,7 @@ module   Components
 describe Percentage do
   describe '#percentage' do
     it 'returns the percentage' do
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 10)
       percentage = Percentage.new(:progress => progress)
 
@@ -18,7 +18,7 @@ module   Components
 
   describe '#percentage_with_precision' do
     it 'returns the percentage' do
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 10)
       percentage = Percentage.new(:progress => progress)
 
@@ -30,7 +30,7 @@ module   Components
 
   describe '#justified_percentage' do
     it 'returns the percentage' do
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 10)
       percentage = Percentage.new(:progress => progress)
 
@@ -42,7 +42,7 @@ module   Components
 
   describe '#justified_percentage_with_precision' do
     it 'returns the percentage' do
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 10)
       percentage = Percentage.new(:progress => progress)
 

spec/lib/ruby-progressbar/components/rate_spec.rb

@@ -8,7 +8,7 @@ module   Components
     it 'returns the rate as a formatted integer' do
       Timecop.freeze(::Time.utc(2020, 1, 1, 0, 0, 0))
 
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 100)
       timer      = Timer.new
       rate       = Rate.new(:progress => progress,
@@ -29,7 +29,7 @@ module   Components
     it 'can scale the rate' do
       Timecop.freeze(::Time.utc(2020, 1, 1, 0, 0, 0))
 
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 100)
       timer      = Timer.new
       rate       = Rate.new(:progress   => progress,
@@ -53,7 +53,7 @@ module   Components
     it 'returns the rate as a formatted integer' do
       Timecop.freeze(::Time.utc(2020, 1, 1, 0, 0, 0))
 
-      projector  = Calculators::SmoothedAverage.new
+      projector  = Projectors::SmoothedAverage.new
       progress   = Progress.new(:projector => projector, :total => 100)
       timer      = Timer.new
       rate       = Rate.new(:progress => progress,